Home / 28,864.15-43,336.01-19,957.59

Finding the Fourth Proportional to 28,864.15, 43,336.01 and 19,957.59

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Solution

The fourth proportional to 28,864.15, 43,336.01 and 19,957.59 is: 29,963.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864.15 : 43,336.01 = 19,957.59 : x
  2. Step 2: Convert to fraction form
    28,864.15/43,336.01 = 19,957.59/x
  3. Step 3: Cross multiply
    28,864.15x = 43,336.01 × 19,957.59
  4. Step 4: Simplify right side
    28,864.15x = 864,882,319.82
  5. Step 5: Solve for x
    x = 864,882,319.82/28,864.15
  6. Step 6: Final answer
    x = 29,963.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.